Living Mathematics and Science to the Full

Archive for May, 2014

How to Analyze Questions


Question Analysis

Use this guide to vocabulary to better understand what teachers are asking for in their assignments.

I. Information questions ask for nothing more than information and are the most direct way to find out how much someone knows about a reading.

A. Define: Give the exact meaning of the topic. How is it different from everything else of its type?
Example: Define Marx’s concept of alienated labor.

B. Describe, discuss: Tell what happened or what the topic is. Concentrate only on primary or most important features.
Example: Describe the conditions on the ships that brought slaves to America and discuss one rebellion that took place on a slave ship.

C. Explain why: Tell the main reason why the topic happened or happens.
Example: Explain why the ocean tides are not at the same time every night and why they are not always the same height.

D. Illustrate: Give one or more examples of the topic, relating each to the topic.
Example: Primitive tribes usually have rigid family systems. Illustrate this point, using one of the tribes studied this semester.

E. Relate: Show how the topic has an effect on something else; the connection(s) between two things.
Example: Relate the evolution of the horse to the changes in its environment.

F. Summarize: To give all the main points of a topic; to reduce it without changing it.
Example: Summarize Galileo’s main discoveries.

G. Trace: Give a series of important steps in the development of a historical event or a process or any sequence of happenings.
Example: Trace the events that led up to the Civil War.

H. Compare: Show how two things are both alike and different.
Example: Give two examples of biological polymers and compare them.

I. Contrast: Show only the differences between two things.
Example: Contrast the scultpture of Renaissance Italy with that of Baroque France.


II. Questions of application and speculation are among the most difficult questions because they ask you to apply what you know to solve a problem.

A. Agree or disagree: Give your opinion about a topic, expressing either a positive or negative opinion. Support your opinion from appropriate sources.
Example: The first six months of a child’s life are the most important period in its emotional development. Agree or disagree.

B. Analyze: Break down the topic into its parts and explain how the parts relate to each other and to the whole topic.
Example: Analyze the structure of Beethoven’s Fourth Symphony.

C. Critique, criticize: Break the topic into its parts (analyze); explain the meaning (interpret); and give your opinion (evaluate).
Example: Critique Peter Singer’s argument that all animals are equal.

D. Evaluate: Give your opinion about a topic. You may make both positive and negative points, but you must come to some conclusion about the relative weight of good and bad points.
Example: Evaluate the importance of protein molecules in a cell.

E. Interpret: Explain the meaning of the topic. Give facts to support your point of view.
Example: Interpret the meaning of the election statistics given on page 12 of your textbook.

F. Justify, prove: Give reasons to show why the topic or assertion is true. Use examples.
Example: Justify, from a Southerner’s point of view, the need for slaves in the ante bellum South.

G. Could. . .? Determine if the topic is capable of what is being asked. Your response should include a yes or no answer.
Example: Could Hitler have won World War II if he had defeated Great Britain in 1940?

H. How would. . .? Determine the probable reaction to the topic in the circumstances provided.
Example: How would President Clinton have reacted upon discovering the Watergate break-in?

I. What would happen if. . .? Based on what you have already learned, determine the probable outcome of a new set of circumstances.
Example: Concentrated solutions of urea (8M) act as denaturing agents for proteins by disrupting non-covalent bonds. What would happen to the configuration of a protein dissolved in 8M urea?

SOURCE:http://www.west.net/~ger/questions.html

How to teach your child to study – tips from Angela Norton Tyler


Let’s face it, most students don’t know how to study. Everybody talks about the importance of grades and test scores, yet we neglect to show students how to do well. Our poor children either don’t study at all or spend hours trying to studying every night. Neither choice is good. The whole thing ends up being a waste of time and effort.

Students might need to do some extra studying before a test, but there are ways to stay on top of the information without having to put in hours of hours of work or burning out. Think quality more than quantity.

This is how I tell my own middle school daughter and intermediate (grades 3-5) students how to study and prepare for upcoming tests:

  1. First of all, get organized. I recommend having a separate folder for each school subject. Keep things to be turned in (papers, reports, homework, etc.) on one side of the folder. On the other side, place all returned/corrected homework, tests, handouts, etc. Keep everything—at least until the end of the semester! You will see why it is important to be able to put your hands on these papers.
  2. A week or so before the test, ask the teacher for a study guide.(Do not become the annoying student who asks throughout every lecture “Is this going to be on the test?” It drives teachers bananas.)
  3. If the teacher does not have a ready-made study guide, ask “What should I know for the test?” Often, teachers will tell you exactly what you need to know and where to find it. Write down whatever they say!
  4. For math tests: Do the end-of-chapter problems or the sample test. If you can do these problems, then you understand the most important concepts in the chapter and you should do well on the test.
  5. Also for math tests: Redo any homework problems you missed. Make certain that you understand where you went wrong the first time. Ask the teacher to explain any problems you still cannot do.
  6. For social studies or science tests: Answer the end-of-chapter and/or end-of-unit questions. Often, you will find these exact questions on the test! At the very least, you will have a broad understanding of the most important concepts and ideas from the unit.
  7. Review/organize/rewrite your notes. Take a look at your notes since the last test. Are they neat? Do they make sense? Is there a better way to organize them? For example, can you group certain ideas together? Would it make sense to have one page of dates and another page of important people? One of the best ways to get information into your head is to organize it and write it down. Rewrite your notes neatly.
  8. Review/organize/rewrite handouts from the teacher. If the teacher took the time to copy something, she thinks you need to know it. Take a look at all of the handouts the teacher gave you. Do you understand them? Please don’t recreate all the handouts! Think about creating one page with the most important information from all of them.
  9. Know the definition of all vocabulary words, concepts, ideas, people, etc. that have been introduced since the last test. These are the highlighted words found in a chapter. Sometimes, there will be a list of “important words” or “people to know.” Write down all of these words and be sure to include any word that your teacher takes the time to define for you, as well.
  10. Memorize. You will be amazed at how much information you know after organizing your notes and looking for important words. Still, sometimes you must buckle down and commit things to memory.

How To Study With Flash Cards

I love flash cards! Here’s how to use flash cards to study:

Write the word on one side, the definition on the other, and test yourself. For example, write electorate on one side of the flash card and “the body of enfranchised citizens; those qualified to vote” on the other.

Say “electorate,” then flip the card over and say “the body of enfranchised citizens; those qualified to vote.” Do this over and over until you can repeat the definition without looking at it.

After you have learned all of the cards, start with the definitions and see if you remember the word before turning over the flash card. Speak up! Move around! You will learn faster if you hear the words out loud (auditory learning) and get your body involved (kinesthetic learning). Who cares if your little brother thinks you’re crazy? He’ll be jealous of your grades!

When you think you know all of the words and definitions, ask someone else to test you. Missed any? Go back and memorize them. Do this until you know every word.

How To Study With Folded Paper

Folded paper. I know, I am so high-tech! I learned how to study with this study method in the 8th grade, and I have been using it ever since—even in graduate school.

Fold a regular piece of lined paper in half the long way. In the left column, write the words you need to memorize. In the right column, write down the definitions. Think of the paper as a bunch of attached flash cards. Keep the paper folded and flip it back and forth as you learn each word and definition. Follow the same routine as with the flash cards: memorize, test yourself, get tested.

Start this process a few days before the test. So after you finish your regular homework, study for a half-hour or so. Don’t wait until the last minute and try to cram everything into your head. Put a little information in each night, and it will stick. Plus, by studying this way, you will still have time for a life outside of homework, and you will feel relaxed and confident about the test.

Finally, right before the test, review your notes (read them out loud if you can) and run through your flash cards or folded paper study sheets. You are ready to ace the test!

Learning how to study is not difficult at all. And the best part is that once you learn how to do it, you’re set. I don’t study much differently now than I did when I was in 8th grade. (Studying is probably the only thing I still do the same way!)

If you are a parent trying to convince your child to learn these techniques or a student trying to teach yourself how to study—don’t give up! Knowing how to study is actually a skill you can use for the rest of your life.

Sleep disturbances in adolescence may lead to high cholesterol, high blood pressure and being overweight later in life.


Lack of quality sleep for adults may negatively impact heart health. Evidence now suggests that sleep problems during adolescence may increase health risks as well.

The research appeared Monday in the Canadian Medical Association Journal.

“When most people think about cardiovascular risk factors and risk behaviors, they don’t necessarily think of sleep,” said Dr. Brian McCrindle, senior author and cardiologist at SickKids in Toronto, Ontario. “This study … shows a clear association between sleep disturbance (in adolescents) and a greater likelihood of having high cholesterol, high blood pressure and being overweight or obese.”

“These findings are important, given that sleep disturbance is highly prevalent in adolescence and that cardiovascular disease risk factors track from childhood into adulthood,” noted Dr. Indra Narang, the lead study author and director of sleep medicine at SickKids.

The researchers examined data from the 2009/2010 school year for adolescents in the Niagara region of Ontario.

More than 4,000 ninth-grade students completed questionnaires asking about their sleep duration, quality, disturbances, snoring, daytime sleepiness and the use of any sleep medications during a period of one month.  Their average age was 14.6.

The students also answered questions about their physical activity, time spent in front of a computer or television and nutrition.

Researchers studied participants’ height, weight, waist circumference, cholesterol levels and blood pressure. They adjusted for those with family history of cardiovascular disease, so they could be confident of the association found.

Participants slept, on average, 7.9 hours during the week and 9.4 hours on weekends. The Centers for Disease Control and Prevention recommends adolescents get 8.5 to 9.5 hours of sleep a night.

Almost one in five reported their weeknight sleep as “fairly bad” or “bad.” One in 10 said the same was true for their weekend sleep. In addition, almost 6% of respondents said they had used medications to help them sleep.

“What happens with these kids is they have very poor sleep habits and sleep hygiene, so they’re sleepy and tired and have poor energy during the day, so they hop themselves up on caffeinated beverages and then that just perpetuates their problem and a lot of them wound up taking some kind of sleep medication,” McCrindle said. “So they get in a cycle.”

Narang said 6% was “quite a lot” of adolescents taking over-the-counter and prescription medication to help them sleep.

“It really shows that some adolescents are experiencing very disturbed sleep that they’re then needing sleep medication,” she said.

Common sleep disturbances reported by the adolescents included waking up during the night or early in the morning, not being able to fall asleep within a half-hour, feeling too hot or too cold, having to use the restroom and bad dreams.

Those who reported sleep disturbances more often consumed soft drinks, fried food, sweets and caffeine, the research showed. They also reported less physical activity and increased screen time. In addition, the adolescents with shorter sleep routines reported less physical activity and more screen time.

In the short term, poor sleep impairs daytime function.

“It can affect (your) learning, it can affect (your) memory,” Narang added.

Parents concerned about their child’s sleep can intervene in several ways.

McCrindle suggests trying to minimize media use in the bedroom.

“Do (the adolescents) really need to have a TV, a computer, all their video games in the bedroom?” he asked.

Instead, ensure kids have down time before bedtime.

Narang feels consumption of high-energy caffeine drinks may largely be to blame.

But the big picture, she says?

“Everybody involved in the health care of a child – a nurse, a physician, a teacher – needs to promote well sleep, and that would involve a certain number of hours a sleep and routine of sleep,” Narang said.

The routine would keep them on the same sleep schedule all week long, she added.

Source:http://thechart.blogs.cnn.com/2012/10/01/poor-sleep-and-sleep-habits-in-adolescence-may-raise-health-risks/

MOA # 9


That feeling you get when you successfully complete a difficult task.

MOA # 8


Knowing that you aced an examination.

MOA # 7


Hearing the applause as your name is called.

MOA # 6


Seeing the petals of a flower peep through the calyx.

MOA # 5


Seeing a parent beam with pride when their child enjoys success.

Anxiety in children – how parents can help


What is Anxiety?

Anxiety is a normal emotional state that we all experience at various times in our lives. It is closely related to fear, which is another normal and necessary emotion that everyone experiences. We need to be fearful of certain situations in order to protect ourselves from danger. Some words used to describe different states of fear include frightened, scared, afraid, panicky, and terrified. It is normal and beneficial for a person to experience fear when faced with real and immediate danger, for example when being chased by a dangerous animal.

Anxiety is usually associated with anticipated fear of something happening in the future. Some words used to describe different states of anxiety include worried, concerned, anxious, nervous, tense, shy, and cautious. Anxiety is normal and beneficial when we are faced with a difficult situation. For example, it is normal for us to feel anxious before a test or speaking in front of a group of people, and our anxiety helps us to prepare for the difficult task.

Anxiety Can be Overlooked in Children

Children experience various states of fear and anxiety from the moment they are born. Sometimes it is easy to tell if a child is anxious by their crying and clinging behaviors. But sometimes, it is difficult to identify anxiety in children. Some children hide their anxiety because it is too difficult for them to express it to others. Some children turn their anxiety into angry tantrums or defiant behaviors.

Sources of Anxiety in Childhood

Some children are born with an anxious temperament and seem to be anxious of many situations right from the start. It is believed that up to fifteen percent of infants are born with a more anxious temperament.

There are developmental sources of anxiety throughout childhood as well and all children experience fears and worries as part of their normal development. Most young children experience fears of the dark, monsters, separation from parents, animals, and strangers. As children grow, these fears gradually change to fears about social acceptance, academic and sports achievements, health, mortality and family.

Other sources of anxiety for children arise from normal life and family transitions. Children go through many changes and transitions as they and their families grow and mature. For example the birth of a sibling, starting school, moving to a new home, death of an elderly grandparent, becoming accepted by a peer group, and mastering tasks in and out of school can all be stressful and anxiety-provoking for children.

In addition, difficult or even traumatic events that are out of the ordinary can happen to a child with the likelihood that anxiety will increase for that child. For example, parental conflict and separation, illness or injury of the child or the child’s family members, the unexpected death of a close family member, extended separations from parents, family or community violence, and natural disasters are all difficult and sometimes traumatic experiences for children to go through.

How to Identify Children Who May Be Struggling With Anxiety

Children struggling with excessive anxiety may show the following:

  • Pessimism and negative thinking patterns such as imagining the worst, over-exaggerating the negatives, rigidity and inflexibility, self-criticism, guilty thoughts, etc.
  • Anger, aggression, restlessness, irritability, tantrums, opposition and defiance
  • Constant worry about things that might happen or have happened
  • Crying
  • Physical complaints such as stomachaches, headaches, fatigue, etc.
  • Avoidance behaviors, such as avoiding things or places or refusing to do things or go places
  • Sleeping difficulties, such as difficulty falling or staying asleep, nightmares, or night terror
  • Perfectionism
  • Excessive clinginess and separation anxiety
  • Procrastination
  • Poor memory and concentration
  • Withdrawal from activities and family interactions
  • Eating disturbances

Impact on the Family

Overly anxious children can have a negative impact on the family. Highly anxious children can be demanding and can become very emotional if things don’t go the way they want. Parents can become confused about how firm they need to be with limits and if they should give in to the child to avoid emotional outbursts.

When Does Anxiety Become a Problem for Children?

When a child is very young, normal fears can be accepted. However, as a child grows, fears and anxieties that were considered normal at a younger stage of development may be less appropriate.

Some indications of excessive anxiety in a child include fear that is out of proportion to the actual threat in the environment or anxiety that is excessive for an anticipated future event. Also, children struggling with too much anxiety will often have difficulties in settling back to a normal state.

Anxiety becomes a problem when it prevents children from enjoying normal life experiences. For example, when anxiety begins to have an impact on school, friendships, or family, then parents or other adults may need to step in to help the child.

How You Can Help Your Anxious Child

Anxious children can benefit a great deal by support from their parents. The following tips will provide you with some ideas for helping your anxious child.

Routines and Structure

Establish consistent daily routines and structure. Routines reduce anxiety and regular daily patterns emphasize predictability. A regular routine will give a sense of control to both parent and child. Anxious children do not cope well with a disorganized, spontaneous family life style.

Take care of the basic needs of your child, especially to prevent fatigue and hunger. Establish a regular bedtime routine consisting of quieter activities (e.g. bath, reading with parent, talking with parent), which helps your child to gradually relax.

Provide opportunities for exercise. Exercise is helpful in relieving stress and helping your child’s body to relax.

It is important for children to have limits set and consequences for breaking the limits. Children feel secure when there are limits setting restrictions on inappropriate behaviors.

Help Children Identify Feelings

Help your child notice different feelings by naming various feelings she or others may experience. Explain how people show their feelings (through faces, bodies, words) and that showing your feelings is an important way for others to understand how you are feeling. Help your child notice how different feelings “feel” in his own body, for example tight hands, butterflies in stomach, etc.

Provide Opportunities for Communicating About and Feelings

It is helpful for children to talk about their feelings, however talking about feelings is not easy for children, especially when they are asked directly. It is important for parents to watch and listen carefully for the times when a child does express feelings, either directly through words or indirectly through behaviors. At these times, you can help your child by acknowledging and accepting her feelings through simply reflecting them back to her and refraining from providing advice or asking questions. When a child’s feelings are criticized, disapproved of, or not accepted by a parent, his internal sense of self is weakened.

Provide Soothing and Comforting Strategies

Comforting and soothing a child are very helpful strategies that parents can use in relieving anxiety. These strategies communicate to the child that she is safe and cared for. Verbal reassurances of safety and love, rocking, cuddling, holding, massage, singing, and telling stories are just some of the soothing and comforting strategies that parents can use. Parents may be surprised to realize that children may sometimes need comforting and soothing that seems to the parent to be too “babyish” for the child’s age. However, anxious children do need extra soothing experiences that relax and relieve the tension in their bodies.

Respect Your Child’s Fears

Children are generally not helped when parents tell them to stop being afraid of something. What is helpful to most children is an approach in which you acknowledge their fears and at the same time let them know that you will help them overcome these fears.

Model Brave Behavior

Children look to others for guidance on how to respond in unfamiliar situations. They usually watch for cues from their parents and use these cues to help determine if the situation is safe or not. If the parent’s response is fearful or anxious, the child’s response is also likely to be fearful or anxious.

Although it is important for parents to model appropriate cautionary and safety behaviors when appropriate, it is important for parents to act as confident and brave role models as well. If a parent is overly anxious and over-protective, this anxiety can be easily communicated to a child with the accompanying message that the world is too dangerous. As well, the child also receives the message that he is incapable.

Parents need to acknowledge and understand their own anxieties and make an effort to contain them when appropriate in the presence of their children. Sometimes, parents need to act brave even if they don’t feel brave. An important and helpful message for an anxious child to receive from a parent is that the parent has confidence both in the child and in the situation.

Encourage Brave Behavior

While children are generally not helped when parents demand that they face their fears all at once, they are helped when parents can gently encourage them to approach feared situations. This is because exposure to feared situations leads to desensitization and reduction of the fear and anxiety.

However, approaching feared situations can be difficult for anxious children since they would rather avoid them. One way of helping a child approach a feared situation is to go about it in small steps so that each step is achievable and gradually becomes a little more difficult. Another important strategy for parents is to reward a child for trying to approach a feared situation. A child will also find it helpful to be reminded that the fear will get smaller over time. In addition, children can be reminded of fears and difficult situations that they have overcome in the past.

Teach Relaxation Skills

Learning relaxation skills will help children feel better when they are anxious, worried or scared. It will also help them learn that they have some control over their own bodies rather than being controlled by their anxiety.

One way to help your child relax is to encourage slow, deep breathing. You can help your child practice this by getting her to imagine slowly blowing bubbles. Another way to relax is to ask her to alternately tense and relax her muscles. Additionally, some of the soothing and comforting strategies outlined above work very well to relax children.

You can also help your child use his imagination to relax. Help your child to imagine a safe and relaxing place and to notice the good relaxing feelings in his body. Or, have him imagine a container (such as a big box) to put his worries in so they are not running wild in his mind and bothering him when he needs or wants to be doing other things.

Encourage “Feeling Good” Activities:

When children are anxious, encourage them to engage in activities they enjoy such as playing with a favourite toy, doing a fun art or craft activity, doing something active outside, playing a game, reading a book, or playing with friends. Children will often need the assistance and attention of their parents to engage in these fun activities if they are anxious.

Storytelling

There are many children’s books available that deal specifically with anxiety, fears and worries. These books can be very helpful for children as the stories will often model various ways of coping with fears and anxiety. When searching for books, use keywords such as anxiety, worry, fear, scary, scared, shy, etc.

Teach Problem-Solving Strategies

Help your child with their worries and problems by teaching them how to problem-solve by defining the problem, brainstorming all possible solutions and their consequences, and choosing the best solution.

Be aware, however, not to jump in too early to help “fix” your child’s problems. Remember to give your child lots of time to express his negative feelings around worries and problems first where you are just listening and acknowledging feelings before helping him to figure out a solution.

Challenge Unhelpful Thoughts

Help your child to understand that the negative and pessimistic things she says to herself about herself are not helpful and can influence how she feels and behaves. For example, thinking (or saying), “I’m so hopeless, I’ll never do it,” can make her feel angry, hopeless, sad and ultimately even more anxious.

By changing the unhelpful thoughts with more helpful and positive thoughts, for example by saying or thinking, “If I keep practicing, I’ll get better,” or “Even if I make a mistake, I can learn and do better the next time,” your child’s anxiety levels will be reduced.

Again, remember to allow your child lots of time to express her negative thoughts around worries and fears first before helping her to figure out more helpful ways of thinking about the situation.

Source: http://kathyeugster.com/articles/article004.htm

Why we need to be informed about sleep


London – Modern living has made us become “supremely arrogant” in the way we ignore the importance of sleep, leading scientists warn.

The demands of today’s 24-hour society mean many people push themselves too far, or “override the clock”, in the words of one expert.

Far too many of us bury our heads in the sand over the issue and ignore the health risks of neglecting our sleep, he added.

Lack of sleep puts the body clock out of sync and can cause severe health problems, such as cancer, heart disease, Type 2 diabetes and obesity.

A project involving scientists from Oxford, Cambridge, Harvard, Manchester and Surrey universities concluded that the public and governments are failing to take the problem seriously.

The experts, who collaborated for the BBC’s Day of the Body Clock programme, found that on average, people get two hours’ less sleep a night than 60 years ago. They warned that modern life – and particularly our attachment to computers and hand-held gadgets like tablets and smartphones – means many people are ‘living against’ their natural body clocks, which are biologically geared to rest at night.

Professor Russell Foster, a neuroscientist at the University of Oxford, added: “We are the supremely arrogant species; we feel we can abandon four billion years of evolution and ignore the fact that we have evolved under a light-dark cycle.

“What we do as a species, perhaps uniquely, is override the clock. Long-term acting against the clock can lead to serious health problems.”

It is an issue that affects the whole of society, but is particularly acute among teenagers, he said.

Nearly all living things have an internal mechanism known as the circadian rhythm, or body clock, which synchronises bodily functions to the 24-hour pattern of the Earth’s rotation.

In humans and other mammals, it is regulated by the senses – most importantly the way the eye perceives light and dark and the way skin feels temperature changes.

The mechanism rules our daily rhythms, including our sleep and waking patterns and metabolism.

But the pressures of modern living mean we are now increasingly working against our clocks and risking long term health problems from metabolic disease.

Professor Charles Czeisler of Harvard University, said smartphones, tablets and computers had high levels of light at the blue end of the spectrum, which hits us “in the sweet spot” for disrupting the human body clock.

“Light is the most powerful synchroniser of your internal biological clock,” he said.

“Light exposure, especially short wavelength blue-ish light in the evening, will reset our circadian rhythms to a later hour, postponing the release of the sleep-promoting hormone melatonin and making it more difficult for us to get up in the morning.

“It’s a big concern that we’re being exposed to much more light, sleeping less and, as a consequence, may suffer from many chronic diseases,” Professor Czeisler said.

Separate research published in the Journal of the Royal Society Interface, suggests forcing the body to work overnight may also cause damage to the brain similar to Alzheimer’s disease.

US scientists at Brigham and Women’s Hospital, Boston, found that rats kept awake at night suffered disturbances in the electrical activity of neurons that are typically seen in dementia. The authors believe the findings may also apply to humans.

Another study, in Sleep Medicine, found women who get less than six hours a night were 65 percent more likely to have high total cholesterol and 71 percent more likely to have raised levels of LDL – the so-called “bad” cholesterol which clogs up arteries around the heart. – Daily Mail

Source: http://www.iol.co.za/lifestyle/family/sleep/we-need-to-see-the-light-about-sleep-1.1689601#.U3pYxHk71Gg